Turret slide clamp



/ April 10, 1945.. o; KYLlN TURRET SLIDE CLAMP Filed Feb. 13, 1943 5. MW r A l v nm\whl INVEN TOR.

0 wwm i x M 0 be applied to the-slide "UNITED- PAT NT OFFICE" A l 4Claims. My invention relates to machine tools and more particularly to an improved clamping meansfor binding a turret slide to the saddle of, the machine t'oolt v v One of, the. objects of the invention is to ob- TURRET'SLIDECLAMP oskar1.-Kyn ClevelandHeights, Ohio: I Application February 13, 194-3; Serial No; 4515;709-

tainfbymeans of an improved clamping device,

a more powerful binding action betweentheturret slide and the saddle of a machine tool.

,Another object of the invention is to provide a slide clamp of. the above named character which is of simple construction and which may be ,operated with minimum efiort, yet which is so constructed thatla very powerful bindingforce may Other objects andadvantagesof my invention willbecome more; apparent as the followingdescriptionof an embodiment of theinvention progresses, reference beingv made to the accompanydrawing inwhich like reference characters are employed, to the same.

f In the drawing- Figure 1 is a side elevation of a form of my invention shown in use,

Figurez is an enlarged transverse section taken on line 22 of Figure 1, showing the clamp in l of the clamp Figure 7 is a similar view of the cams in clamping position.

Referring more particularly to the drawing, I have shown an end of a machine tool saddle l which overlies the bed la of the machine. A slide for carrying either tools or a work piece is indicated at 2 and is provided with a recess} extending along its front face.' Saddle caps 4 l and 5 are carried by the saddle, and are secured designate like parts throughout lower end of the bolt beingthreaded to receive the threaded cam locking nut I I.

iace and which seats in a groove or slot l6 extending across the lower face-of. the lower saddle cap 5.

The upper'face of the saddle is formed with a depression area I! surrounding the bolt opening [8 to provide clearance between this surface and the lower surface of the cap 4. The depression extends rearwardly of the cap to the. inner edge thereof, while. the adjacent forward edge 19 projects slightly above the depression area IT and providesin effect a fulcrum for the cap when itis drawn downwardly into binding engagement with the slide 2;.

When the cams l2 and [3 are assembled on the lower end of the bolt 9 and the nut II is tightened the upper cam I2 is-locked against rotation with the bolt by means of the rib and slot while the lower cam is fixed for rotation with the bolt by means of the interi'ltting splines or serrations 14 on the cam and bolt.

The engaging cam surfaces 20 of the respective cam members are therefore slidable one upon the other when the bolt is rotated .in either direction.

. An operating handle 2| having a hub 22 is removably fitted to the upper end of the bolt 9 which is headed at 23. The walls 24 of the bolt head may be inclined to converge upwardly, while the internal wall of the opening 25 in the hub is similarly inclined to provide an effective friction grip or lock between the hub and head when the threaded stud 26 is tightenedin the head against the disc 2! overlying the hub upper surface. A bearing plate 28 may be inserted in the saddle cap 4 to provide a suitable bearing surface for the under surface of the head 23 during the clamping or binding action.

thereto by means of bolts or the like. The upper saddle cap has a projecting slide engaging portion Twhich extends into the recess 3 'of the slide for binding engagement therewith and is apertured at 8 to receive the binding bolt 9.

The bolt 9 extends vertically through the sad- It will'be noted that the respective cam faces 20 are so disposed that by swinging the operat- I ing lever 2| through an arc of only about as indicated in Figure 4, a very great clamping pressure is exerted through the bolt 18 and the saddle caps 4 and 5 to bind and securely hold the slide 2 against movement on the saddle. By this arrangement a very powerful binding force may be applied with relatively'little effort and likewise the binding forces may readily be released by swinging'the lever in a reverse direction. Z i

In use, as the operator swings the lever 2| from an unclamping position as in Figure 1 or as shown in broken lines in Figure 4 to the full line position in Figure 4, the cam 13 is rotated from its position in Figure 6 to a full binding position as shown in Figure 7, thus drawing the bolt l8 and the saddle cap 4 downwardly to bring the projecting portion 7 of the cap into binding engagement with the lower Wall of the slot 3 in the slide. .During this movement of the cam [3, the

cam I2 is locked against rotation by means of the rib I and the slot [6. Very little downward movement is required to effect a strong binding action and for this reason the depression area I! in the saddle upper surface may be rather shallow and only slightly below the level of the lower wall 29 or the slot 3.

Suitable bearing strips may be provided at 30 for supporting the slide on the saddle.

Various changes may be made in the details of construction and arrangement of parts without departing from the spirit of the invention on the scope of the appended claims.

I claim:

1. The combination with a saddle and a slide on said saddle, of releasable means for binding the slide to the saddle, said means including a saddle cap on said saddle and having a portion engageable with said slide, and means for drawing the slide engaging portion of the cap into binding engagement with the slide, said last named means comprising a rotatable pressure member extending through the cap, a cam rotatable with said member, and cam coacting means fixed relative to the cam and engageable thereby.

2. The combination with a saddle and a slide on said saddle, of releasable means for binding the slide to the saddle, said means including a saddle cap on saidsaddle and having. a portion engageable with said slide, and means for drawing the slide engaging portion of the cap into binding engagement with the slide, said last named means comprising a rotatable pressure member extending through the cap and a pair of relatively cooperating cams, one of saidcams being fixed with respect to the pressure member and the other of said cams being fixed with respect to the saddle.

3. In a machine tool, the combination with a saddle, and a slide member on said saddle, of releasable means for exerting a powerful binding pressure upon the slide to prevent relative motion between the saddle and the slide, said means including a saddle cap having a portion projecting into engagement with an adjacent portion of the slide, a pressure member rotatable in the saddle underlying the cap, said saddle in the area of the pressure member being partially relieved away from the slide, and means carried by the saddle andthe pressure member for drawing the projecting portion of the cap into binding engagement with the slide when the pressure member is rotated in one direction.

4. In a machine tool, the combination with a saddle, and a slide member on said saddle, of releasable means for exerting a powerful binding pressure upon the saddle to prevent relative motion between the saddle and the slide, said means including a saddle cap having a portion projecting into engagement with an adjacent portion of the slide, a pressure member rotatable in the saddle underlying the cap, said saddle in the area of the pressure member being partially relieved along its upper surface away from the slide, and means carried by the saddle andithe pressure member for drawing the projecting portion of the cap into binding engagement with the slide when the pressure member is rotated in one direction, said last named means comprising a pair of relatively movable cooperating cams.

OSKAR KYLIN. 

